diff options
author | Jacques Lucke <jacques@blender.org> | 2021-05-20 13:15:57 +0300 |
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committer | Jacques Lucke <jacques@blender.org> | 2021-05-20 13:15:57 +0300 |
commit | f3a0267016cba54873b9b60d857798a13460425d (patch) | |
tree | 37f0dd2f261c22043b950a1997761e57b28b014e /source/blender/blenkernel/intern/material.c | |
parent | b51bd859fd4339e10b56c4b4d2d5807891153a12 (diff) |
Materials: support materials when applying modifier
This fixes the `Apply Modifier` and `Visual Geometry to Mesh` operator
when a modifier changed materials on the evaluated geometry.
This is necessary since rB1a81d268a19f2f1402f408ad1dadf92c7a399607.
Differential Revision: https://developer.blender.org/D11303
Diffstat (limited to 'source/blender/blenkernel/intern/material.c')
-rw-r--r-- | source/blender/blenkernel/intern/material.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/material.c b/source/blender/blenkernel/intern/material.c index 73a7a69f5a5..73b64e6efb3 100644 --- a/source/blender/blenkernel/intern/material.c +++ b/source/blender/blenkernel/intern/material.c @@ -1121,6 +1121,43 @@ void BKE_object_material_remap_calc(Object *ob_dst, Object *ob_src, short *remap BLI_ghash_free(gh_mat_map, NULL, NULL); } +/** + * Copy materials from evaluated geometry to the original geometry of an object. + */ +void BKE_object_material_from_eval_data(Main *bmain, Object *ob_orig, ID *data_eval) +{ + ID *data_orig = ob_orig->data; + + short *orig_totcol = BKE_id_material_len_p(data_orig); + Material ***orig_mat = BKE_id_material_array_p(data_orig); + + short *eval_totcol = BKE_id_material_len_p(data_eval); + Material ***eval_mat = BKE_id_material_array_p(data_eval); + + if (ELEM(NULL, orig_totcol, orig_mat, eval_totcol, eval_mat)) { + return; + } + + /* Remove old materials from original geometry. */ + for (int i = 0; i < *orig_totcol; i++) { + id_us_min(&(*orig_mat)[i]->id); + } + MEM_SAFE_FREE(*orig_mat); + + /* Create new material slots based on materials on evaluated geometry. */ + *orig_totcol = *eval_totcol; + *orig_mat = MEM_callocN(sizeof(void *) * (*eval_totcol), __func__); + for (int i = 0; i < *eval_totcol; i++) { + Material *material_eval = (*eval_mat)[i]; + if (material_eval != NULL) { + Material *material_orig = (Material *)DEG_get_original_id(&material_eval->id); + (*orig_mat)[i] = material_orig; + id_us_plus(&material_orig->id); + } + } + BKE_object_materials_test(bmain, ob_orig, data_orig); +} + /* XXX - this calls many more update calls per object then are needed, could be optimized */ void BKE_object_material_array_assign(Main *bmain, struct Object *ob, |